1 /*- 2 * Copyright (c) 1996-1997 John D. Polstra. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _MACHINE_ELF_H_ 30 #define _MACHINE_ELF_H_ 31 32 /* 33 * ELF definitions for the RISC-V architecture. 34 */ 35 36 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 37 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 38 39 #define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */ 40 #include <sys/elf_generic.h> 41 42 /* 43 * Auxiliary vector entries for passing information to the interpreter. 44 */ 45 46 typedef struct { /* Auxiliary vector entry on initial stack */ 47 int a_type; /* Entry type. */ 48 union { 49 int a_val; /* Integer value. */ 50 } a_un; 51 } Elf32_Auxinfo; 52 53 typedef struct { /* Auxiliary vector entry on initial stack */ 54 long a_type; /* Entry type. */ 55 union { 56 long a_val; /* Integer value. */ 57 void *a_ptr; /* Address. */ 58 void (*a_fcn)(void); /* Function pointer (not used). */ 59 } a_un; 60 } Elf64_Auxinfo; 61 62 __ElfType(Auxinfo); 63 64 #define ELF_ARCH EM_RISCV 65 66 #define ELF_MACHINE_OK(x) ((x) == (ELF_ARCH)) 67 68 /* Values for a_type. */ 69 #define AT_NULL 0 /* Terminates the vector. */ 70 #define AT_IGNORE 1 /* Ignored entry. */ 71 #define AT_EXECFD 2 /* File descriptor of program to load. */ 72 #define AT_PHDR 3 /* Program header of program already loaded. */ 73 #define AT_PHENT 4 /* Size of each program header entry. */ 74 #define AT_PHNUM 5 /* Number of program header entries. */ 75 #define AT_PAGESZ 6 /* Page size in bytes. */ 76 #define AT_BASE 7 /* Interpreter's base address. */ 77 #define AT_FLAGS 8 /* Flags (unused). */ 78 #define AT_ENTRY 9 /* Where interpreter should transfer control. */ 79 #define AT_NOTELF 10 /* Program is not ELF ?? */ 80 #define AT_UID 11 /* Real uid. */ 81 #define AT_EUID 12 /* Effective uid. */ 82 #define AT_GID 13 /* Real gid. */ 83 #define AT_EGID 14 /* Effective gid. */ 84 #define AT_EXECPATH 15 /* Path to the executable. */ 85 #define AT_CANARY 16 /* Canary for SSP */ 86 #define AT_CANARYLEN 17 /* Length of the canary. */ 87 #define AT_OSRELDATE 18 /* OSRELDATE. */ 88 #define AT_NCPUS 19 /* Number of CPUs. */ 89 #define AT_PAGESIZES 20 /* Pagesizes. */ 90 #define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ 91 #define AT_TIMEKEEP 22 /* Pointer to timehands. */ 92 #define AT_STACKPROT 23 /* Initial stack protection. */ 93 94 #define AT_COUNT 24 /* Count of defined aux entry types. */ 95 96 /* Define "machine" characteristics */ 97 #define ELF_TARG_CLASS ELFCLASS64 98 #define ELF_TARG_DATA ELFDATA2LSB 99 #define ELF_TARG_MACH EM_RISCV 100 #define ELF_TARG_VER 1 101 102 /* TODO: set correct value */ 103 #define ET_DYN_LOAD_ADDR 0x100000 104 105 #endif /* !_MACHINE_ELF_H_ */ 106